Concrete structure.



C. R. HALL.

CONCRETE STRUCTURE.

APPLIOATION FILED MAR. 8, 1911.

1,020,645. Patented Mar. 19, 1912.

1 AL M l I 1" g WITNESSES:

UNITE s'ra'rns PATENT OFFICE.

CHARLES R. HALL, OF SEABECK, WASHINGTON.

CONCRETE STRUCTURE.

To all whom it may concern:

Be it known that I, CHARLES R. I'IALL, a citizen of the United States, residing at Seebeck, in the county of Kitsap and State ofWVashington, have invented certain new and useful Improvements in Concrete Structures, of which the following is a specification.

This invention relates to that class of reinforced concrete structures which is adapted for construction of sea-walls, pierheads, piling or the like which is at least partially submerged in water.

The object of the present invention is the provision of an improved means or system of block formation whereby efficient and durable structures of the above mentioned types are readily erected and in situations Where a homogeneously constructed wall would be impractical.

The invention consists in the novel construction and combination of elements as will be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a plan view of a sea .wall showing an embodiment of my invention. Fig. 2 is a vertical section taken through 22 of Fig. 1. Fi 3 is a perspective view of a foundatio n support for the wall members such as may be utilized to support a wall over an irregular sea-bottom or where the latter is of a soft or unstable nature.

In carrying out my invention, I employ a number of interfitting wall members composed of hollow concrete blocks of sizes suitable to the structure and with regard to the facilities for handling the same.

Referring to Fig. 1, the numeral 5 designates a circular block. 6 are blocks each provided at an end with a concavity 7 to fit against the periphery of the block 5. At the opposite ends of blocks 6 and centrally of their widths are dove tail recesses 8. Between a recess and the inner and outer blockfaces 9 and 10, respectively, are a protuberance 11 and a recess 12 which are arranged symmetrically so that correspondingly disposed recess and protuberance provided on the end of adjoining ends of blocks 13 will register therewith. The last named blocks are provided at both ends with the dove-tail slots 8 and the above mentioned devices, the protuberances 11' and recesses 12, which are interfittable with the adjoining elements of similar blocks or Specification of Letters Patent.

Application filed March 8, 1911.

Patented Mar. 19, 1912.

Serial No. 613,165.

of the type of blocks indicated by 6. In assembling the blocks the ends are not usually juxtaposed but separated 'to afford interstices for a filling cement to bind same together into a rigid body. The opposing dove-tail slots are filled with cement to make a lock tie between the adjacent blocks of each tier thereof.

The aforedescribed blocks are further characterized by having a rib 14L projecting upwardly from the upper surface of each and a correspondingly shaped groove 15 (see Fig. 2) in the lower face, so that superposed blocks will have the rib of the lower one extend into the groove of the block next above, and so on to the upper tier of blocks, as will be understood from an inspection of Fig. 2. The blocks are further provided with spaced holes 16 for the reception of vertical rods 17 which serve to guide the blocks as they are successively lowered to mate with the ones next below. In Fig. :2, I show a stack of blocks supported upon a base block 18 having the rib 1 1 but unprovidcd with a groove 15. Where such a base block is employed, the rods 17 should be fitted in the holes therefor of the base block in order that the rods will be held upright and in parallel for receiving the blocks deposited thereupon. Similarly, base blocks may be provided for the other blocks 6 and 13, though a T-shaped girder 19 (Fig. 3) of cast or rolled iron is deemed preferable, as the alincment of the horizontal rows of blocks are more readily effected.

WVhere a girder is adopted the bars 17 are desirably screw threaded at their lower ends to engage threaded holes 20 in the girder.

In constructing a wall, the block elements are laid up in horizontal rows, with cement binder in the interstices. Where the wall is straight, the entire structure can be formed with blocks of the type indicated by 13. WVhere there is an angle in the wall a column of the blocks 5 would be used at the bond with flanks of blocks 6 which in turn make the connection with the blocks 13. By making the blocks 5 circular and the flanking blocks 6 concave, it is evident that various angles can be made in a wall face. Under certain conditions such a corner as made by blocks 5 may be reinforced by a vertical row of blocks, as indicated by broken lines 6, Fig. 1, to furnish a buttress of the same. The blocks 5 may also be used in isolated columns to serve in the nature of piles for supporting a Wharf superstructure, or the like.

Best results are insured by first driving into the ground a post 22 (Figs. 1 and 2) I of timber axially to each column of blocks 5 for the purpose of obviating any horizontal displacement at the time of erection or subsequently if subjected to any longitudinally acting forces of suflicient moment to disturb the same as, for example, the dynamic force of a high surf found in certain locations along the sea coast.

The invention is extremely simple, the blocks can be made of standard sizes and under normal conditions of Weather and sea a Wall comprising blocks of the above described nature may be quickly constructed.

Copies of this patent may be obtained for five cents each, by addressing the What I claim, is-

A Wall including horizontal rows of blocks, the opposing ends of the blocks formed With symmetrically arranged protuberances and grooves to provide interfitting connections between the adjacent blocks of each horizontal row, the opposing ends of the blocks further provided With opposing dove-tail grooves for the reception of a filling of cement to constitute a binder between the ends of the blocks, and vertically extending rods projecting through the ends of each of the blocks.

CHARLES R. HALL.

Witnesses PIERRE BARNES, H. BARNES.

Commissioner of Patents,

Washington, D. G. 

